EP1223998A2 - Mecanisme de preparation de dose destine a des dispositifs d'injection electroniques - Google Patents

Mecanisme de preparation de dose destine a des dispositifs d'injection electroniques

Info

Publication number
EP1223998A2
EP1223998A2 EP00962261A EP00962261A EP1223998A2 EP 1223998 A2 EP1223998 A2 EP 1223998A2 EP 00962261 A EP00962261 A EP 00962261A EP 00962261 A EP00962261 A EP 00962261A EP 1223998 A2 EP1223998 A2 EP 1223998A2
Authority
EP
European Patent Office
Prior art keywords
dose
injection
circuit
electronic
air shot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00962261A
Other languages
German (de)
English (en)
Other versions
EP1223998B1 (fr
Inventor
Jens Munk
Sören AASMUL
Henrik Ljunggreen
Lars Hofmann Christensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novo Nordisk AS
Original Assignee
Novo Nordisk AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novo Nordisk AS filed Critical Novo Nordisk AS
Publication of EP1223998A2 publication Critical patent/EP1223998A2/fr
Application granted granted Critical
Publication of EP1223998B1 publication Critical patent/EP1223998B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/172—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M2005/3125—Details specific display means, e.g. to indicate dose setting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M2005/31588—Constructional features or modes of drive mechanisms for piston rods electrically driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/3146—Priming, e.g. purging, reducing backlash or clearance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31525—Dosing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A61M5/31545—Setting modes for dosing
    • A61M5/31546—Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31533—Dosing mechanisms, i.e. setting a dose
    • A61M5/31545—Setting modes for dosing
    • A61M5/31548—Mechanically operated dose setting member
    • A61M5/31561—Mechanically operated dose setting member using freely adjustable volume steps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31566—Means improving security or handling thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/3159—Dose expelling manners
    • A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps

Definitions

  • An electronic injection device comprising a housing containing an electronic circuit into which the size of a set dose can be read by operation of dose setting means, an injection button which can be operated to inject a set dose, an ampoule from which a medicine can be pressed out through a needle mounted at the distal end of the ampoule when the injection button is operated, a display driven by the electronic circuit to show the dose set by operation of the dose setting means.
  • Devices wherein the doses are electronically represented also may contain circuitry wherein historical data are stored so it is possible to create a picture of the way the user has followed his treatment and prospective doses and time intervals can be planned on the basis of the stored data. At least it is appropriate to be able to store the size of the latest injected dose and the time passed since this injection.
  • buttons are needed, e.g. a counting up dose set button allowing a stepwise increase of the set dose, a counting down dose set button allowing a stepwise decrease of an erroneously too high set dose, and an injection button by which either the dose is manually injected or the electronic circuit is ordered to energise a motor to inject the set dose.
  • An air shot may be performed by setting a small dose, e.g. one international unit of the medicine to be injected, and make this small dose be pressed out from the ampoule holding the device with the needle pointing vertically upward. This procedure can be repeated until it is seen that liquid is sprayed out through the needle where after the dose to be injected can be set, the needle can be inserted into the skin of the user, and an amount of medicine corresponding to the set dose can be pressed out and injected through the needle.
  • a small dose e.g. one international unit of the medicine to be injected
  • the device is provided with a memory which stores historical data for the purpose of controlling the course of a treatment it is necessary to register which of the doses have been air shot doses and which doses has actually been injected.
  • This problem could be overcome by providing a special air shot button as it is known from syringes by which the injection is performed manually, but this will be on the account of one more button whereby the possibilities for erroneous operation is increased.
  • An objective of the invention is to provide an injection device by which repetitive air shots can be performed without adding extra operation buttons to the device and without information of the air-shots are stored as a part of the operation history of the device.
  • an electronic injection device as described in the opening paragraph of this application which device is according to the invention characterised in that the electronic circuit is designed to work in two alternative modes: an air shot mode in which it controls an automatic pre-setting of a small air shot dose to be pressed out from the ampoule when the injection button is actuated, and a dose injection mode in which a dose set by operation of the dose setting means is injected by operation of the injection button, said circuit normally working in the air shot mode but shifting to work in the dose injection mode when it receives a signal indicating that the dose setting means has been operated.
  • the circuit may return to its air shot mode when receiving a signal indicating that a set dose has been injected. This signal may either be a signal from a switch indicating that a protection cap is mounted or a signal from a switch indicating that the injection button has been pressed.
  • the electronic circuit will work in a mode making it control either a dose setting motor to set a small air shot dose which can be injected by pressing the injection button, or control a motor to press out an air shot dose when the injection button is operated.
  • the injection button may now be operated one or more times while the device is held with the needle pointing upward until it is seen that liquid and not air is pressed out through the needle.
  • a position indicator may be provided which gives of a signal to the electronic circuit when the device is held in the correct position for an air shot.
  • the signal which can be an opening or a closing of a switch, can be made a condition that has to be fulfilled before the electric circuit energises the motor to prepare or perform an air shot. This way waste of medicament, due to the fact that the device is held in a position in which air in the ampoule cannot reach the needle, is avoided.
  • the dose setting may be electro-mechanically realised by means of an electric motor which is controlled by the electronic circuit to lift up the injection button from the housing a distance corresponding to the set dose and the injection may be performed manually by pressing home the injection button.
  • the signal that indicates that a set dose has been injected may be a switch which is actuated when the injection button is pressed.
  • the electronic circuit will then prepare a new air shot each time a home pressing of the injection button is performed and the circuit will remain in the air shot mode.
  • actuation of the injection button may make a motor electro- mechanically press out a dose from the ampoule, the motor being controlled by the electronic circuit to press out an automatically set small air shot dose when the circuit is working in its air shot mode, and a dose set by operation of the dose setting means when the circuit is working in its dose injection mode.
  • the working mode of the electronic circuit is changed to an injection mode in which operation of the injection button will result in the injection of a set dose either by directly pressing out a dose corresponding to the distance the injection button has been elevated over the housing by the dose setting motor controlled by the electronic circuit, or by controlling an injection motor to inject the dose set by the operation of the dose setting member, and the circuit will remain in this mode until the injection button has been pressed.
  • the circuit may be so designed that it cannot receive a signal from the dose setting means until at least one air shot dose has been administered.
  • the electronic circuit may comprise a memory wherein historical information of injected doses and the time for their injection is stored.
  • the electronic circuit according to its two working modes can discriminate between air shots and injection of doses set by the user, these historical data can be rid of disturbing air shot data.
  • the electronic circuit may further be provided with a memory wherein the size of all air shots and injections are summed and subtracted from the size of the total content of a new ampoule to leave the memory with an information of the size of the remaining amount of medicine in the ampoule.
  • the set dose currently is compared with the remaining amount of medicine in the ampoule to block for setting of a dose exceeding this remaining amount.
  • Figure 1 shows a block diagram of the electronic components of an embodiment of an injection device according to the invention
  • Figure 2 shows a block diagram of the electronic components of another embodiment of an injection device according to the invention
  • Figure 3 schematically shows an injection device according to the in- vention
  • an electronic circuit 1 is connected to a battery 2 which supplies the power needed for the operation of the circuit Further the battery 2 supplies an injection motor 3 which power supply is controlled by the circuit 1
  • To the circuit 1 is coupled a set of dose setting buttons 4 and 5, one 4 marked with a "+” and which provides a stepwise increase of the set dose as long as it is pressed, and another 5 marked with a "-” and which provides a stepwise decrease of a set dose as long as it is pressed
  • the size of this set dose can be read on a display 6 coupled to electronic circuit 1
  • the dose-increasing button 4 is maintained in pressed condition until the display has counted up to the wanted dose, if the wanted dose is exceeded the button 5 is pressed until the display has counted down to the wanted dose After the dose has been set the set dose is injected by pressing an injection button 7, which makes the circuit energ
  • the dose setting is here described as being performed by buttons 4 and 5
  • Rotating a dose setting wheel or drum whereby a counting up is performed when this wheel is rotated in one direction and a counting down is performed when the wheel is rotated in the opposite direction may alternatively perform the dose setting
  • WO 9733638 it is known to provide a device with a protective cap protecting the nee- die when the device is not in use Further a switch is provided which is operated by the cap so that the position of the switch indicates whether the cap is on or not In the device in figure 1 aswitch 9 is coupled to the circuit 1 to bring information of the on or off condition of the cap to this circuit To save battery power consuming parts of the circuit is turned off when the cap is on This does not go for possible watch and memory functions which need continuous energising.
  • a switch connected to the injection button 7 is actuated each time the injection button is op- erated. When this switch is actuated it gives of a signal to the circuit, which signal is taken as an indication of the fact that the injection button has been operated.
  • the circuit When the circuit receives this signal it is coupled to work in an air shot mode in which an activation of the injection button 7 will make the circuit energise the motor to make the device administer a pre-set small amount from the ampoule, e. g. an amount corresponding to one international unit of the medicine in the ampoule. Such an administration will be performed each time the injection button 7 is activated until a dose setting is started. As soon as the circuit receives a signal from the dose setting buttons 4 or 5 indicating that a dose is being set the working mode of the circuit 1 changes to a dose injection mode in which the motor is controlled to administrate the set dose when the injection button 7 is pressed. When the button 7 has been pressed to inject the set dose the injection button switch gives of a signal making the circuit change to the air shot mode but as soon as the dose setting buttons are operated again the circuit will change to the dose injection mode.
  • an activation of the injection button 7 will make the circuit energise the motor to make the device administer a pre-set small amount from
  • a direction indicator 10 may be include in the device which indicator provides a signal which informs the circuit whether the position of the device is appropriate for an air shot. 7 Said signal can control the circuit to only energise the motor to perform an air shot when the device is in the correct position for such an air shot. When the circuit works in its dose- injecting mode the position will have no influence on the energising of the motor 3.
  • the air shot is obtained by the fact that the motor automatically elevates the injection button 17 a distance corresponding to an air shot dose as long as the circuit works in its air shot mode what it does after each pressing of the injection button 17.
  • the circuit 1 1 shifts to a dose injection mode and controls the motor 13 to elevate the injection button 17 a distance corresponding to the set dose.
  • the injection button is pressed the set dose is injected and the injection button sends a signal to the circuit 11 to make this circuit revert to the air- shot mode.
  • the device according to figure 2 is further provided with a position indicator 20 which gives off a signal to the electronic circuit which will only allow setting of an air shot dose when the device is held in a position vertical position with the needle pointing upward.
  • the air shot function may be repeated as long as the dose setting buttons 14 or 15 are not operated.
  • the actuation of the injection button 21 switch sends a signal to the electronic circuit making this circuit attain the air shot mode in which it controls the injection button to be elevated again after an air shot until a signal from one of the dose setting buttons 14 or 15 makes said electronic circuit shift to its dose injection mode.
  • FIG. 3 shows schematically an injection device comprising a housing 31 in which an ampoule holder 33 holds an ampoule 32
  • a needle hub 34 with an injection needle 35 is mounted at the distal end of the ampoule so that a not shown rear needle is penetrating the sealing of the ampoule
  • a dose-setting wheel 39 can be rotated in one direction to count up a dose or in the opposite direction to count down a too large set dose
  • Turning of the dose setting wheel 39 is by a signal generator or switch 37 reported to a not shown electronic circuit in the housing and the set dose is shown in a display 36
  • An injection button 40 is provided the operation of which will result in administration of a dose, which dose depending on the operation mode of the electronic circuit is a fixed small air shot dose or the dose shown in the display 36
  • the injection button 40 can operate an electric switch that activates the electronic circuit to energise a motor, which moves a piston into the ampoule to press out some of the content of this ampoule through the needle 35
  • the button is mechanically lifted up from the end of the housing 31 a distance corresponding to the size of a set dose
  • the button is automatically elevated a distance corresponding to an air shot when the cap 43 is removed and an air shot is administered by pressing the button 40 home
  • a switch 44 is provided which reports to the electronic circuit that the button 40 has been pressed home
  • the button is again automatically elevated to a position corresponding to an air shot whereas it is elevated a distance corresponding to the dose set by the dose setting wheel 39 when this wheel is operated and the circuit is shifted to its injection mode
  • the dose setting device is described as a dose setting wheel but it may as well be a count up button and a count down button without departing form the scope of the invention

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Elimination Of Static Electricity (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Flow Control (AREA)
  • Eye Examination Apparatus (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

L'invention concerne un dispositif d'injection électronique dans lequel un circuit électronique est conçu pour fonctionner dans deux modes alternés: un mode évacuation d'air et un mode injection de dose. Lorsque le dispositif fonctionne en mode évacuation d'air, une petite quantité déterminée d'air est projetée hors de l'ampoule par commande du bouton d'injection, et lorsqu'il fonctionne en mode injection de dose, une dose réglée par commande des moyens de réglage de dose est injectée par commande du bouton d'injection. Ce dispositif fonctionne normalement en mode évacuation d'air, mais il se commute sur le mode injection de dose lorsqu'il reçoit un signal indiquant que les moyens de réglage de dose ont été actionnés. Le circuit retourne ensuite à son mode évacuation d'air lors de la réception d'un signal indiquant que la dose réglée a été injectée, ce signal pouvant provenir soit d'un commutateur indiquant la présente du capuchon de protection, soit à partir d'un commutateur indiquant la commande par pression du bouton d'injection.
EP00962261A 1999-10-12 2000-09-29 Mecanisme de preparation de dose destine a des dispositifs d'injection electroniques Expired - Lifetime EP1223998B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DK145199 1999-10-12
DKPA199901451 1999-10-12
DKPA199901732 1999-12-03
DK173299 1999-12-03
PCT/DK2000/000538 WO2001026710A2 (fr) 1999-10-12 2000-09-29 Mecanisme de preparation de dose destine a des dispositifs d'injection electroniques

Publications (2)

Publication Number Publication Date
EP1223998A2 true EP1223998A2 (fr) 2002-07-24
EP1223998B1 EP1223998B1 (fr) 2007-10-10

Family

ID=26065769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00962261A Expired - Lifetime EP1223998B1 (fr) 1999-10-12 2000-09-29 Mecanisme de preparation de dose destine a des dispositifs d'injection electroniques

Country Status (17)

Country Link
EP (1) EP1223998B1 (fr)
JP (1) JP4282931B2 (fr)
KR (1) KR20020036860A (fr)
CN (1) CN1378465A (fr)
AT (1) ATE375175T1 (fr)
AU (1) AU7405500A (fr)
BR (1) BR0014707A (fr)
CA (1) CA2388494A1 (fr)
CZ (1) CZ20021261A3 (fr)
DE (1) DE60036721T2 (fr)
HU (1) HUP0203039A2 (fr)
IL (1) IL148956A0 (fr)
MX (1) MXPA02003671A (fr)
NO (1) NO20021704L (fr)
PL (1) PL364696A1 (fr)
TW (1) TW493998B (fr)
WO (1) WO2001026710A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1349593B2 (fr) † 2000-12-22 2018-04-04 Sanofi-Aventis Deutschland GmbH Injecteur au format stylo avec unite de commande electronique

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6663602B2 (en) 2000-06-16 2003-12-16 Novo Nordisk A/S Injection device
CN1602212B (zh) * 2001-12-13 2010-04-07 松下电器产业株式会社 医疗用投药器具
JP4633095B2 (ja) * 2001-12-13 2011-02-16 パナソニック株式会社 医療用投与器具
JP4549079B2 (ja) * 2004-03-05 2010-09-22 パナソニック株式会社 医療用投与器具
DE602005009005D1 (de) 2004-10-21 2008-09-25 Novo Nordisk As Injektionsvorrichtung mit mitteln zur meldung der zeit seit der letzten injektion
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JP4282931B2 (ja) 2009-06-24
NO20021704L (no) 2002-05-31
PL364696A1 (en) 2004-12-13
TW493998B (en) 2002-07-11
AU7405500A (en) 2001-04-23
ATE375175T1 (de) 2007-10-15
WO2001026710A2 (fr) 2001-04-19
BR0014707A (pt) 2002-06-18
CN1378465A (zh) 2002-11-06
JP2003511157A (ja) 2003-03-25
HUP0203039A2 (en) 2003-01-28
KR20020036860A (ko) 2002-05-16
CA2388494A1 (fr) 2001-04-19
CZ20021261A3 (cs) 2002-09-11
DE60036721T2 (de) 2008-07-17
WO2001026710A3 (fr) 2001-09-13
DE60036721D1 (de) 2007-11-22
NO20021704D0 (no) 2002-04-11
MXPA02003671A (es) 2002-08-30
IL148956A0 (en) 2002-11-10
EP1223998B1 (fr) 2007-10-10

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